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Grain Testing

Insect Management

Grain Temperature Probe


The Grain Temperature Probe is a great tool for monitoring the quality of your grain in storage. 

Designed for the temperature control of agricultural bulk goods like cereals, legumes, oilseeds as well as for hay, straw. 

Changes in temperature can indicate a number of issues in storage including insect activity and moisture. 

The temperature probe is 1.5m in length and made of steel with a sensor in the tip.  A K-Type thermocouple connects the probe to a digital reader. 

 

Grain storage temperature advice:

Use a grain temperature probe to check grain temperature. Freshly harvested wheat or barley usually has a temperature of about 30ºC, which is an ideal breeding temperature for storage pests.

The optimum grain temperature for insect reproduction is between 25ºC and 30ºC. Research has shown that the rust-red flour beetle’s life cycle is completed in four weeks at 30ºC, but at 22ºC the life cycle is slowed to 11 weeks, significantly decreasing population growth and insect activity. Breeding ceases at 20ºC.

Aim for grain temperatures of less than 23ºC during summer and less than 15ºC in winter.

from the GRDC.....

"Use a grain temperature probe to check grain temperature. Freshly harvested wheat or barley usually has a temperature of about 30ºC, which is an ideal breeding temperature for storage pests. The optimum grain temperature for insect reproduction is between 25ºC and 30ºC.  Research has shown that the rust-red flour beetle’s life cycle is completed in four weeks at 30ºC, but at 22ºC the life cycle is slowed to 11 weeks, significantly decreasing population growth and insect activity.  Breeding ceases at 20ºC.  Aim for grain temperatures of less than 23ºC during summer and less than 15ºC in winter."